Poise and manipulating device for same on balance beams



May 5, 1931. "J. P. MULLER 1,304,177

POISE AND MANIPULATING DEVICE FOR SAME ON BALANCE BEAMS Filed Nov 15 INVENTOR.

m I051; 2 Killer BY \glh C2- yak/(417k ATTORNEY).

Patented May 5, 1931 "UNITED STATE-S "PATENT OFFICE JOHN P. MULLER, or NEW'ROCHELLE; NEW YORK 'rorsn AND MANIPULATING DEVICE FOR SAME on BALANCE BEAMS Applieati on filed liovember 19, 1929. Serial No. 406,802.

. "My invention relates toimprovem'ents in the manipulating devices for the 'p'oises or riders'used on the beams of scales orbal'ances as they are forinstance' described in my Patcut No. 1,719,901, dated July 9th, 1929', and

to readilyand conveniently lift, shift; and

deposit the riders or poises during'the oscill atio'ns of the scalebeam without interference with its motion 'and'without danger of losing'the riders. v

Another 'ob'ect of my invention is'the provision of a manipulator for the ridersor 'poises of scale beams'of comparatively simple "and therefore inexpensive construction, yet durable and eflicient' operation. 2e Still "another obj ect'bf my'invention is the provision of a manipulator device of this typewith which a'ri'der or poise of a specific "designjis'to be used ensuring a positive engagement bythe manipulator to lift, transport and deposit the rider by the proper manipulation ofthe' device Without danger of dropping or losing the rider.

"A further'object of Iny invention is' the' provision of a rider orf'poise manipulator allowing a ready shifting of the "rid ersin the direction of the longitudinal axis of the scale beam and'equipped with a plurality of rider manipulating devices each beingpos'it ively guided during its operation and limited in its movements by adjustable collars. A still further object of my invention is the provision of a manipulatorof this character provided with means for allowing an engagement of" either manipulating device by adjustable lifting pins for lifting the vertically displaceable brackets carrying the lifters for the riders for one or the other of said-devices, and means for locking the pins in their adjusted positions. i

" These and other objects and'advantages of 'my invention will become more fully'known as'the description thereof proceeds, anawill then be specifically'defined' in the appended claims. I

In the accompanying drawings forming a material part of this disclosure: v Fig. 1 is a frontelevation of a scale'beam and a manipulating device for the riders or poises constructed according to my invention. V

Fig. 2 is a top plan view'thereof. v Fig; 3 is an end View in section on line 33 of Figure 1. i n

As illustrated, the suitably graduated scale beam 10 of any conventional construction has one of its arms notched on its upper.

face, as at 11, While'its other armhas a smooth upper edge. The notched arm is provided with a scale divided in relatively larger denominations as for instance centigrams reading from the center to the right,

while the arm of the bearnwith the smooth upper edge is provided with graduations in milligrams or other relatively small denominations reading from left to the center.

The riders or poises used" with 'my 'nevv manipulating dev ce are preferably shaped as shown in Flgure 3, m which a pair of depending loops 12, 18 are connected at the top of their inner branches by a bridge 14 adapted to rest upon the scale beam, while the outer loopbranches have their ends angularly and outwardly bent, as at 15 and 16 respectively to offer handle parts for'engagement by the manipulator or lifter members as'will be hereinafter more fully described.

The manipulating device for the riders comprises a pair of superposed substantially parallel rods 17 and 18 chromiumplated in order to .make the same resistant against chemicals thus making the scales suitable for use in laboratories etc. and highly polished to allow a ready manipulation of the riders or poises.

The threaded ends of the rods 17 18 are held in the depending arms 19, 20, of supporting brackets 21, 22, by means of nuts 23,

or the like. i

The bracket 21 has secured near its upper end a pair of so'ckets '24, 25, extending through the bracket and carrying at their inner ends two tubular extensions 26, 27, re-

spectively for guiding a pair of longitudinal- -ly displaceable rods 28, 29 one shorter than recess 33 for guiding the manipulator along the rod 17 and an opening therebelow allowing the passage of rod 18 below which a'horizontal branch or tailpiece 34 is rectangularly disposed to branch 32-and provided at its opposite end with a guide 35 for guiding the manipulator along rod 18. i

On both sides of the vertical branch '32the same carries vertically displaceable thereon,

a bracket 36 havingthe upper and, lower edges of its arms inwardly bent in opposite directions, as at 37, 38, respectively and spaced from each other. The lower edges of bracket ends 38 are perforated for the pas sage of the upper branches of wire loops 39 on both sides of the scale beam having lower converging ends united at a point 40 to form convenient resting places for engagement of the outer endsr15 or 16 respectively of the poises. The outer rear faces of the manipulators are equipped with loops 41. Adjustable collars 42, 43 limit the outward movements of the manipulators on rod 18.

. The rods 28, 29 displaceable in tubular extensions 26, 27, have bores near their outer ends allowing the passage of pins 44 exchangeably held to said rods by means of screws 45, and an adjustable collar 46 limits the outward movement of rod 28.

I H The operation of my novel rider manipu lating device will be entirely clear fromthe above description, and it will beclear that by engaging the ends of pins 44 into the loops 41 either manipulator may be conveniently operated by means of the shifting rods 28, 29, to engage the ends 15, 16 of a poise and to lift the poise by turning the rods in their sockets 24, 25, by the proper operation of their milled knobs 30, 31 and then depositing the rider upon the scale beam at the proper graduation thereof.

A loss of riders will be positively prevented and the shifting, lifting and depositing operations can be accomplished during the oscillation of the scale beam without interfering with its motion.

The chromium plated bars or rods will effectively protect the rods against corrosion and facilitate the smooth operation of the manipulators, while the adjustable collars will suitably limit their movements within certain predetermined limits. The form of riders is specially devised for the purpose and they will be protected against loss or inisplaccinent and thus the operation of the or rider carrying wire loops.

device will at all times be positive and eflicient.

It will be understood that I have described and shown the preferred form of my rider or poise manipulating device, as one example only of the many possible ways to practically construct the same, and that I may make such changes in its general arrangement and in the construction of the minor details of my manipulator within the scope of the appended claims. without departure from the spirit of my invention and the principles involved. Having thus described my invention, what I claim as new, and desire to secure by Letters Patent is: r

1. A manipulator for the riders orpoises ofbalance beams comprising a plurality of rider manipulators adapted to engage the riders, lift the same from the beam at one point thereof, transferring the riders, and depositing the same at another point of the 'beam, means for securing the riders against loss,frods for guiding said manipulators, means for limiting their outward movements and means for positively operating said manipulators. L. Y

2. In a manipulator for the riders and poisesof balance beams a plurality of superposed substantially parallel rods, a plurality of manipulating devices, eachcomprising a substantially vertical, recessed branch, engaging one of said rods in its recess, a horizontal branch formed with said vertical branch through which the other of'said rods is passed, a vertical displaceable bracket on saidvertical branch having arms with upper and lower perforated bent ends, wire loops havinglower convergingends meeting at a point and upper ends engaged in the perforation of the lower bent ends of said bracket for engaging the outer ends of a rider, and loops on said bracket adapted for engag ement by manipulator pins to lift said bracket 3. In a manipulating device for the riders and poises of balance beams the combination thereof with poises or riders each composed of a pair of lateral depending loops, a bridge connecting the upper ends of the inner branches of said loops for supporting the riders on the upper edge of the balance beam with its loops depending parallel to the side faces of the beam, the outer ends of the outer branches of said loops angularly bent and straight to form points of engagement by the pins of the manipulating device. Y

4. A manipulator for theriders and poises of scale beams comprising a pair of substantially superposed parallel rods, supports for the ends of said rods, rider manipulating devices slidablyguided by said rods for longitudinal displacement thereon, collars on said rods for limiting the outward'movement of said manipulatng devices, loops on said ,devices, sockets in said supports, tubular extensions formed with said sockets, rods displaceably guided within said sockets, pins adjustably held near the inner ends of said displacement rods, adapted to engage the loops of said manipulating devices, and milled knots at the outer ends of said displaceable rods for operating the same for turning said rods to lift and deposit the riders on the balance beam, and shifting said rods longitudinally for transferring the riders from one point of the balance beam to another point for depositing on said beam at the proper graduation.

5. A manipulating device for lifting, transferring and depositing riders and poises of balance beams during their oscillations without interference with their motion comprising supports, inner laterally depending bars on said supports, a pair of superposed highly polished and chromium plated substantially parallel rods spaced from each other and having their threaded ends secured in said depending bars by nuts, a pair of sockets in one of said supports, tubular extensions formed with said sockets extending inwardly thereof, rods longitudinally displaoeable in said tubular sockets and eX- tending to the outside thereof, knobs on the outer ends of said longitudinally displaceable rods, pins radially passed through these rods, near their outer ends, screws for adjustably securing said pins on said rods, collars for limiting the outward movements of said displaoeable rods, a plurality of manipulating devices, each comprising a vertical bar recessed at its upper end for guiding the devices along the upper of said superposed rods, the lower of said rods passing through a perforation of said vertical bar, a horizontal bar integral with said vertical bar, means for guiding said devices on said lower rod, vertically displaoeable brackets on said vertical bars, hangers on said manipulating devices depending therefrom to both sides of the balance beam for engagement of the outer ends of the poises, and loops on the brackets of said manipulating devices adapted to be engaged by said pins for lifting said brackets and their rider engaging loops to lift said riders from the balance beam at one point thereof by the proper rotation of said rods in their sockets, transferring said rider suspended from said loops to another point of said beam, by a shifting of said longitudinally displaceable rods in their sockets, and depositing said rider at the desired point of the beam by another turn of said turnable rods, said loops preventing the loss of the rider during its transportation.

6. A manipulator for the riders and poises of balance beams, comprising a pair of stationary rods, manipulating devices guided along said rods, brackets on said devices, means for holding said brackets vertically f movable to said devices, rider engaging loops carried by said brackets, means for lifting JOHN P. MULLER. 

